Ok, I’m a bit of a noob when it comes to hardware stuff. I have a Thinkpad T490 with the 1920x1080 non-touch screen. My complaint is that I ended up with the model with only 45% NTSC. I would like to upgrade to something with 72%.

AFAICT, my screen’s model # is N140HCA-EAC. 30-pin connector. Is this - https://www.laptopscreen.com/English/model/Lenovo/FRU~01YN154/ compatible?

I already know there’s no blocks or whatever in the bios preventing an upgrade, just want to make sure I buy the right thing. Would rather not ship from China so NA sellers are good.

(btw I obtained the model of what I have now by running “edid-decode </sys/class/drm/card0-eDP-1/edid”, I’m on Linux)

  • such_lettuce7970@kbin.socialOP
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    1 year ago

    Yeah as for the original screen, I can’t seem to identify the revision.

    edid-decode </sys/class/drm/card0-eDP-1/edid
    edid-decode (hex):
    
    00 ff ff ff ff ff ff 00 0d ae d4 14 00 00 00 00
    24 1a 01 04 a5 1f 11 78 02 28 65 97 59 54 8e 27
    1e 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
    01 01 01 01 01 01 b4 3b 80 4a 71 38 34 40 50 3c
    68 00 35 ad 10 00 00 18 00 00 00 fe 00 4e 31 34
    30 48 43 41 2d 45 41 43 0a 20 00 00 00 fe 00 43
    4d 4e 0a 20 20 20 20 20 20 20 20 20 00 00 00 fe
    00 4e 31 34 30 48 43 41 2d 45 41 43 0a 20 00 05
    
    ----------------
    
    Block 0, Base EDID:
      EDID Structure Version & Revision: 1.4
      Vendor & Product Identification:
        Manufacturer: CMN
        Model: 5332
        Made in: week 36 of 2016
      Basic Display Parameters & Features:
        Digital display
        Bits per primary color channel: 8
        DisplayPort interface
        Maximum image size: 31 cm x 17 cm
        Gamma: 2.20
        Supported color formats: RGB 4:4:4
        First detailed timing includes the native pixel format and preferred refresh rate
      Color Characteristics:
        Red  : 0.5898, 0.3496
        Green: 0.3300, 0.5546
        Blue : 0.1533, 0.1191
        White: 0.3134, 0.3291
      Established Timings I & II: none
      Standard Timings: none
      Detailed Timing Descriptors:
        DTD 1:  1920x1080   60.008 Hz  16:9    67.929 kHz 152.840 MHz (309 mm x 173 mm)
                     Hfront   80 Hsync  60 Hback 190 Hpol N
                     Vfront    6 Vsync   8 Vback  38 Vpol N
        Alphanumeric Data String: 'N140HCA-EAC'
        Alphanumeric Data String: 'CMN'
        Alphanumeric Data String: 'N140HCA-EAC'
    `
    

    “CMN5332” doesn’t appear in any searches on laptopscreen.

    What you bought though, do you think that will fit my T90?

    • humanplayer2
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      1 year ago

      Yes, I think so. I the T495 is - as far as I know - just the AMD version of the T490.

      I think it’s ok that you can’t find the revision of your screen. Just check the different revisions on panelook. I suspect they’ll match in dimensions and connector position. I Mena, they ought to, as they are the same model number, and the revision apparently is so unimportant that it doesn’t get stated by the screen itself.